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LM57

National Semiconductor Corporation
Part Number LM57
Manufacturer National Semiconductor Corporation
Description Resistor-Programmable Temperature Switch And Analog Temperature Sensor
Published Jul 13, 2009
Detailed Description LM57 Resistor-Programmable Temperature Switch and Analog Temperature Sensor LM57 February 9, 2010 Resistor-Programmab...
Datasheet PDF File LM57 PDF File

LM57
LM57

Overview
LM57 Resistor-Programmable Temperature Switch and Analog Temperature Sensor LM57 February 9, 2010 Resistor-Programmable Temperature Switch and Analog Temperature Sensor General Description The LM57 is a precision, dual-output, temperature switch with integrated analog temperature sensor.
The trip temperature (TTRIP) is programmable by using two external 1% resistors.
Using extremely small packaged resistors (0.
5 mm x 1 mm), the LM57 can be programmed to any of 256 trip temperatures while consuming very little board space.
The VTEMP output delivers an analog output voltage which is proportional with a negative temperature coefficient (NTC) to the measured temperature.
Built-in temperature...


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